The Swiss has received criticism from ex-teammates and pundits for a perceived poor attitude and body language during his time with Stoke City.
"It's not true what they wrote because I'm a totally different type of [person]," Shaqiri told the Evening Standard.
"Some ex-football players, or ex-teammates, they spoke to the media and it looks like I am a bad boy or something but I've never been a bad boy or had some problems at a club!
"For me, I'm a nice guy who likes to joke, so I think the people who spoke about me were totally wrong."
One of his most outspoken critics has been former Potters teammate Charlie Adam. But Shaqiri thinks the Scotsman could be just jealous of his move to Anfield.
Asked about the criticism from Adam, Shaqiri added: "I think it's just frustration maybe or jealousy because I had a good move.
"I was surprised that he spoke like this about me but that is sometimes the character of a player.
"I know what he said was totally wrong because at that time I played there - especially when times were hard - I was there and I was scoring a lot of goals.
"I was one of the only ones who helped the team with goals in difficult games and he was that guy who took the red card in [important] league games (against Everton) and missed a penalty (against Brighton)."